Multiple choice questions (MCQ) on Theory of machines
Multiple choice questions (MCQ) on Theory of machines
1. A rigid body possesses_____degrees of freedom.
a. One b. Two c. Four d. Six
(Ans:d)
2. Which of the following is an open pair?
a. Journal bearing b. Ball and Socket joint
c. Leave screw and nut d. None of the above
(Ans:c)
3. Which of the following is a higher pair?
a. Turning pair b. Screw pair
c. Belt and pulley d. None of the above
(Ans:c)
4. A higher pair has__________.
a. Point contact b. Surface contact
c. No contact d. None of the above
(Ans:a)
5. In a ball bearing, ball and bearing forms a
a. Turning pair b. Rolling pair c. Screw pair d. Spherical pair
(Ans:b)
6. Transmission angle is the angle between
a. Input link and coupler b. Input link and fixed link
c. Output link and coupler d. Output link and fixed link
(Ans:c)
7. Which of the following is an inversion of Single slider crank chain?
a. Beam engine b. Rotary engine
c. Oldham’s coupling d. Elliptical trammel
(Ans:b)
8. ________ is an inversion of Double slider crank chain.
a. Coupling rod of a locomotive b. Scotch yoke mechanism
c. Hand pump d. Reciprocating engine
(Ans:b)
9. A ball and a socket forms a
a. Turning pair b. Rolling pair
c. Screw pair d. Spherical pair
(Ans:d)
10. The Kutzbach criterion for determining the number of degrees of freedom (n) is (where l = number of links, j = number of joints and h = number of higher pairs)
a. n = 3(l-1)-2j-h b. n = 2(l-1)-2j-h
c. n = 3(l-1)-3j-h d. n = 2(l-1)-3j-h
(Ans:a)